ast constructed

backend/src/app.ts

@@ -1,6 +1,6 @@
 import express from 'express'
 import { json } from 'body-parser'
-import { Sequelize } from 'sequelize'
+import { Sequelize, Op } from 'sequelize'
 import { database, Character, Game, Pick, App } from './db'
 import { lexr, parseOrderByString, FilterParser } from './tokenizer'
 
@@ -46,7 +46,10 @@ app.post('/api/game', jsonParser, async (req, res) => {
   const gameData = await Game.findAll({
     offset: page * count,
     limit: count,
-    order: orderBy
+    order: orderBy,
+    where: {
+      id: { [Op.eq]: 2 }
+    }
   })
   const pageCount = Math.ceil((await Character.count()) / count)
 

backend/src/tokenizer.ts

@@ -1,5 +1,6 @@
 import Tokenizr from 'tokenizr'
 import ASTY from 'asty'
+import { Op } from 'sequelize'
 
 export const lexr = new Tokenizr()
 
@@ -55,6 +56,14 @@ const conjunctinoRegex = /AND|OR/
 const equalityRegex = /([a-zA-Z]+)\s?(=|!=|<|>|<=|>=|:)\s?([a-zA-Z\d"']+)/
 const spacerRegex = /\s/
 
+const opperatorMap = {
+  '=': Op.eq,
+  '!=': Op.ne,
+  '<=': Op.lte,
+  '>=': Op.gte,
+  ':': Op.like
+}
+
 export class FilterParser {
   asty: ASTY = new ASTY()
   lexer: Tokenizr = this.createLexer()
@@ -91,37 +100,61 @@ export class FilterParser {
 
   parseFilter(filter: string) {
     this.lexer.input(filter)
-    let block = this.parseBlock()
+    console.log(`parsing ${filter}`)
+    this.lexer.begin()
+    this.lexer.tokens().forEach((token) => {
+      console.log(token)
+    })
+    this.lexer.rollback()
+    let block = this.parseBlock('AND')
     this.lexer.consume('EOF')
     this.lexer.reset()
 
     return block
   }
 
-  private parseBlock() {
-    let items = [] 
+  private parseBlock(conjunciton: string) {
+    let items = []
+    let activeCon = conjunciton
 
-    for(;;) {
+    for (;;) {
       let nextItem = this.lexer.alternatives(
-      () => this.parseEquality(),
-      () => this.parseGroup(),
-      () => this.parseConjunction())
+        () => this.parseEquality(),
+        () => this.parseGroup(),
+        () => {
 
-      if (nextItem===undefined) {
-        break;
+          console.log("Conjunct")
+
+          let conToken = this.lexer.consume('conjunction')
+
+          console.log("potato")
+          if (items.length === 1) {
+            activeCon = conToken.value
+          }
+
+          if (conToken.value === activeCon) {
+            return this.parseEquality()
+          } else {
+            return this.parseBlock(conToken.value)
+          }
+        }, () => {}
+      )
+
+      if (nextItem === undefined) {
+        console.log("breaking")
+        break
       }
 
       items.push(nextItem)
     }
-    
-    return items
+
+    return this.asty.create('conjunction').set('type', activeCon).add(items)
   }
 
-  private parseConjunction() {
-    
-  }
+  private parseConjunction() {}
 
   private parseEquality() {
+    console.log("doing an equality")
     let columnToken = this.lexer.consume('column')
     let opperatorToken = this.lexer.consume('opperator')
     let valueToken = this.lexer.consume('value')
@@ -133,17 +166,20 @@ export class FilterParser {
     node.set(columnToken.type, columnToken.value)
     node.set(opperatorToken.type, opperatorToken.value)
     node.set(valueToken.type, valueToken.value)
+    node.set('expression', {
+      [columnToken.value]: {
+        [opperatorMap[opperatorToken.value]]: valueToken.value
+      }
+    })
 
     return node
   }
 
   private parseGroup() {
     this.lexer.consume('opengroup')
-    let block = this.parseBlock()
+    let block = this.parseBlock('AND')
     this.lexer.consume('closegroup')
 
-    let node = this.asty.create("group").set({ns: ""}).add(block)
-
-    return node
+    return block
   }
 }